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67 lines
1.9 KiB
67 lines
1.9 KiB
12 years ago
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## Amazon S3 manager
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## Author: Michal Ludvig <michal@logix.cz>
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## http://www.logix.cz/michal
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## License: GPL Version 2
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from BidirMap import BidirMap
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import Utils
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class SortedDictIterator(object):
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def __init__(self, sorted_dict, keys):
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self.sorted_dict = sorted_dict
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self.keys = keys
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def next(self):
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try:
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return self.keys.pop(0)
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except IndexError:
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raise StopIteration
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class SortedDict(dict):
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def __init__(self, mapping = {}, ignore_case = True, **kwargs):
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"""
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WARNING: SortedDict() with ignore_case==True will
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drop entries differing only in capitalisation!
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Eg: SortedDict({'auckland':1, 'Auckland':2}).keys() => ['Auckland']
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With ignore_case==False it's all right
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"""
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dict.__init__(self, mapping, **kwargs)
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self.ignore_case = ignore_case
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def keys(self):
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keys = dict.keys(self)
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if self.ignore_case:
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# Translation map
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xlat_map = BidirMap()
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for key in keys:
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xlat_map[key.lower()] = key
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# Lowercase keys
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lc_keys = xlat_map.keys()
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lc_keys.sort()
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return [xlat_map[k] for k in lc_keys]
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else:
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keys.sort()
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return keys
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def __iter__(self):
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return SortedDictIterator(self, self.keys())
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if __name__ == "__main__":
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d = { 'AWS' : 1, 'Action' : 2, 'america' : 3, 'Auckland' : 4, 'America' : 5 }
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sd = SortedDict(d)
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print "Wanted: Action, america, Auckland, AWS, [ignore case]"
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print "Got: ",
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for key in sd:
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print "%s," % key,
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print " [used: __iter__()]"
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d = SortedDict(d, ignore_case = False)
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print "Wanted: AWS, Action, Auckland, america, [case sensitive]"
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print "Got: ",
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for key in d.keys():
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print "%s," % key,
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print " [used: keys()]"
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# vim:et:ts=4:sts=4:ai
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